2 papers
cond-mat1996
Columnar dimer and plaquette resonating valence bond states of the quantum dimer model
P. W. Leung, K. C. Chiu, K. J. Runge
We study the nature of the ground state of the quantum dimer model proposed by Rokhsar and Kivelson by diagonalizing the Hamiltonian of the model on square lattices of size $L\time…
cond-mat1993
Exact Diag. Study of the 1D Disordered XXZ Model
K. J. Runge, G. T. Zimanyi
We investigate the one-dimensional quantum model in the presence of diagonal disorder. Recently the model has been analyzed with the help of field-theoretical renormalization…